Finding the Fourth Proportional to 12,946,054.72, 19,413,075.12 and 7,556,256.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,946,054.72 : 19,413,075.12 = 7,556,256.40 : x
2. Step 2: Convert to fraction form
   12,946,054.72/19,413,075.12 = 7,556,256.40/x
3. Step 3: Cross multiply
   12,946,054.72x = 19,413,075.12 × 7,556,256.40
4. Step 4: Simplify right side
   12,946,054.72x = 146,690,173,119,180.78
5. Step 5: Solve for x
   x = 146,690,173,119,180.78/12,946,054.72
6. Step 6: Final answer
   x = 11,330,878.50